Railway-car truck



G. A. BOYDEN, JR., AND J. C. BOYDEN.

RAILWAY CAR TRUCK.

APPLICATION FILED FEB. 21. 1920.

- Patented June 1, 1920.

4 SHEETS-SHEET I.

G. A. BOYDEN; JR., AND J. C. BOYDEN.

RAILWAY CARv TRUCK. APPLICATION FILED FEB-21.1920.

1,841,779. I Patented June 1,1920.

4 SHEETSSHEET 2.

G. A. BOYDEN, 1a., AND J. C. BOYDEN.

RAILWAY CAR TRUCK.

APPLICATION man FEB.2I. 1920.

1,341,779. Patented June 1, 1920.

4 SHEETS-SHEET 3.

G. A. BOYDEN, 121., AND J. 0. BOYDEN.

RAILWAY-CAR TRUCK.

APPLICATION FILED FEB. 2|, 1920- '1,341,779. PatentedJune 1, 1920.

. 4 SHEETS-SHEET 4-- anvil to: an 51, 0 m3 mtocneq '1 fully UNETED STATES earner GEORGE A. BOYDEN, an, nivnaonn c. BOYDEN, 0F BALTIMORE, MARYLAND.

RAILWAY-CAR TRUCK.

Specification of Letters Patent.

Application filed February 21, 1920. Serial No. 360,482.

To all whom it may concern:

Be it known that we, GEORGE A. BoYDnN, Jr., and JOHN C. Bormm, citizens of. the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Railway-. do hereby declare the and exact de- -which differ from equalized vertical actions,

but no claims were made in said application to cover the methods and the means for effectuating the disparate vertical actions of said members. Said methods and means are set. forth and. claimed in an application for U. S. Letters Patent for. railway car trucks filed on the 21st day of February, 1920, and serially numbered-360,481.

No claims were made in either of said applications for the methods employed in .assemblingsaid' truck nor for the means by which the various members of the truck are interlocked so that the members of said 'truck can be readily assembled and sepa rated. I

The present. application is. intended to cover generically the methods employed in assembling Y said. truck and the means .by which the interlocking of the various members is efl'ectuated.

Among the objects of our invention are To provide a truck having a minimum number of parts. I

To provide a method for assembling said parts which will reduce the required labor to a minimum;

To construct the various members so that the cooperating parts can be either assembled or separated with a minimum amount of I One set of combinations of elements which maybe assembled by our improved method is shownin the drawings and the structure ofusaid elements Will now be described, the

Patented June 1, 1920.

method by which they are assembledwill be I explained and the novelty of. said method and the novel features of said structure will be pointed out in the claims, but it. 'is to. be

may be constructed to interlock in a manner equivalent to the manner in which those herein described interlock.

One embodiment. of means which may be assembled according to our improved method a j '60 understood that-various forms of elements.

is shown in the accompanying drawings, in I which Figure 1 is a plan view of one of the end journal members of our improved truck.

Fig. 2 is a View of the member shown in I Fig. 1 looking in the directionof the ELTI'OWLQ in said figure. Fig. 3 1s a plan view of the central journal member. I

Fig. 4 is a view of the member shown in Fig. 8 looking in the direction of the arrow"! 4 in said figure.

Fig. 5 is a plan View of the coordinating member. I

Fig. 6 is a viewof the member shown in Fig. 5 looking in the direction of the arrow 6 in said figure.

Fig. 7 is a plan view of the end and can:

tral wheels, journals and journal boxes.

Fig. 8 is a plan view of the end and central wheels, ournals and journal boxes with the end and central journal members ap plied to same, the end members are central member.

not connected to the respectively. In this View,

Fig. 9 is a plan view of the. members shown in Fig. 8, but with the end members pivoted to the central member. I I

Fig. 10 is a plan View ofparts shown Fig. 9, shown in Figs.

5 and 6 placed in position;

but with the coordinating member- The wheels, journals and journal boxes 1,

2, 3, respectively, ers standards.

The end journal boxes are secured inand governed by the end journal members 4 and the central journal boxes are secured in and governed by the central journal member 5,

that lit over the journal boxes 3 in the usual manner. I

The pedestals at the ends of each ofthe are all Master Car Buildeach member being provided with pedestals journal members 4 and 5 are joined together, I

respectively, by -frames 14 and 15, preferably formed integrally with saidpedestals.

The central frame, 15 has two pins 88 rigidly supported in the holes 88 provided therein. Each end frame 14 is provided with an arm 13 preferably formed integrally therewith. The end of each arm 13 is bifurcated, one prong 13 extending over the central frame 15, and the other prong 13 extending thereunder. Both prongs are provided with holes 13 for the reception of one of the pins 8.

Each end journal member is provided with a pair of tongue bearings 9 which are coaxial with the axis of the hole 13 and with a trunnion 11, or other means for guiding the coordinating member 10, as hereinafter explained, formed upon the upper surface thereof. The central journal member 5 is provided with four groove bearings 9 (see Fig. 3), the groove bearings on the right of the frame 15 being coaxial with the axis of the hole 8 on the left of said frame and the bearings 9 on the left of said frame being coaxial with the hole 8 on the right of said frame.

The coordinating member 10 is provided with a king pin 7 of any approved construction and with two elongated slotsor counter bearings 11 for the reception of the trunnions 11 of the end journal members. The coordinating member is further provided with a pair of pedestals 12 on each side thereof, the abutting faces of each pair being of such a distance apart that they will snugly embrace the surfaces 1'2 -12 of the frame 15 of the central member 5.

Extension springs such as 17 and 18 are mounted in sockets formed near the ends of the coordinating member 10 and extension springs such as 19 are mounted in sockets near the center of the coordinating member 10. Extension springs such as 20 are mounted in suitable sockets provided in the pedestals forming part of the end journal members 4 and the central journal member 5.

The operation of our improved truck has been fully set forth in our applications for U. S. Letters Patent Serial No. 298,953, filed May 22, 1919, and in our application for U. S. Letters Patent, Serial No. 360,481, filed Feb. 21, 1920, both applications being for railway car trucks.

The parts hereinbefore described are arranged so that they may be readily interlocked and assembled with a minimum of labor and our improved method for as sembling the members of our interlocking truck is to be carried out as follows The journal boxes 3 are to be applied to the ends of the journals 2 in any approved manner, as shown in Fig. 7. The end journal members 4 and the central member 5 are then to be placed over the correspond ingjournalboxes with the lower ends of the springs 20 in the pedestals of said members bearing against the top of the journal boxes 3, as shown in Fig. 8, and the abutting faces of each pair of pedestals bearing against the side faces of said journal boxes, thus bringing the parts thus far assembled into the mutual relations shown in Fig. 8. The end member's shown in Fig. 8 are then to be moved toward the central member 5, taking care that the upper prongs 13 shall be placed at the top of the central frame 15 and the lower prongs 13 shall be placed at the bottom thereof. The end members are moved toward the central member, as just described, until the hole 13 of the end frame at the left of Fig. 8 is in axial alinement with the hole 8 on the right side of the central frame 15. When this alinement is obtained, a pin 8 is to be passed through said holes, thus forming a pivotal connection between the left end frame and the central frame.

Similarly, the right end frame, as shown in Fig. 8, is to be moved as just described, until axial alinement is obtained between the hole 8 on the left of the central frame 15 and the hole 13 in the right end frame. hen this latter alinement is obtained, a pin 8 is passed through said holes, thus forming a pivotal connection between the right end frame and the central frame and bringing the parts into the mutual relations shown in Fig. 9.

It is to be noted that when the holes 8 are brought into alinement with the holes 13 and the pins 8 inserted, as just described, the tongue bearing 9 will be brought into engagement with the groove bearing 9 and thus there is obtained a free angular movement in a horizontal plane of each end mem her 4 with reference to the central member 5 about the axis of the corresponding pin 8, but the engagement of the tongue bearing 9 wih the groove bearing 9 prevents vertical displacement of each end member 4 with reference to the central member 5. The coordinating member 10 is then placed over the end members 4 and the central member 5 with the sides of each elongated slot 11 embracing the corresponding trunnion 11 and with the abutting faces of the pedestals 12 embracing the surfaces 12 of the central frame 15. This brings the parts into the mutual relations shown in Fig. 10 with the springs 17 and 18 hearing against the tops of the end frames 14 and the springs 19 bearing against the top of the central frame 15. The parts are to be separated in the reverse order to that just explained.

Thus it is to be noted that by the improved interlocking construction of the members of our truck, we are enabled to assemble and separate the members thereof Without the use of tools or skilled labor and in a minimum space of time. Furthermore, the necessity for an erecting shop is avoided. The value of the above-named advantages {is very great in practice, particularly during the operations of removing and replacing worn wheels, journals, bearings or broken parts.

We claim 1. The herein described method of assembling the end and central members of a car truck which consists in assembling each member with its corresponding journal boxes, journal and wheels, and afterward pivotally connecting said members together so that said end members can have only angular movement with reference to said central member.

2. The herein described method of assembling the end and central members of a six wheel car truck comprising a central and end members, which consists in assembling each member with its corresponding journal boxes, journal and wheels, and afterward pivotally connecting said central member to each of said end members so that said end members can have only angular movement with reference to said central member.

3. The herein described method of assembling the members of a six wheel car truck comprising a central and end mem bers and a coordinating member, which consists in assembling said central and end members each with its corresponding journal boxes, journals and wheels, afterward pivotally connecting said central member to each of said end members and finally bringing said coordinating member into engagement with said central and end members.

4. A truck member comprising pedestals, a frame joining said pedestals together, a trunnion on said frame, and an arm on said frame provided with a pivotal connection.

5. A truck member comprising pedestals, a frame joining said pedestals together, a trunnion on said frame, and an arm on said frame provided with a pivotal connection on the end thereof, the end of said arm being bifurcated. V 6. A truck member comprising pedestals,

a frame joining said pedestals together, an arm on said frame provided with a pivotal connection in the end thereof, and tongue bearings on said frame, coaxial with said pivotal connection.

7. A truck member comprising pedestals,

.a frame joining said pedestals together, a

pair of holes in said frame, one on each side thereof, and a )air of groove bearings on each side of said frame, the bearings on each side being coaxial with the hole on theo-pposite side of said frame.

8. A truck member comprising pedestals a frame joining said pedestals together, an surfaces on said frame, in combination with a coordinating member having pedestals to embrace said surfaces.

9. A coordinating member for use in a six wheel truck comprising pedestals located near the center thereof, and bearings located near the ends thereof.

10. A coordinating member for use in a six wheel truck comprising a king pin or center bearing, pedestals located near the center thereof, and bearings located near the ends thereof.

11. In a six wheel truck, the combination with a central member, of end members pivoted to said central member to permit of relative motion in a horizontal plane and locked to said central member to prevent relative motion in a vertical plane.

12. In a six whel truck, the combination with a central member, of end members pivoted to said central member to permit of relative motion in a horizontal plane and a coordinating member having transverse sliding engagement with said central member and longitudinal sliding engagement with said end members.

13. In a six wheel truck, the combination with a central member, of end members pivf oted to said central member to permit of relative motion in a horizontal plane, a coordinating member engaging each of said members, and springs between said coordinating member and each of said members In testimony whereof, we afiix our signatures.

GEORGE A. BOYDEN, JR. JOHN G. BOYDEN. 

